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中文摘要：
面向单孔腹腔镜手术特点,设计了一种机器人视觉系统,能为单孔腹腔镜手术提供所需的视野和照明.通过选择输出模拟信号的CMOS芯片和无线视频传输芯片的方案,以及设计相应的射频放大电路,实现了30万像素视频的实时无线传输.通过对比不同布局下光强最小值以及照明均匀性的差异,选择了合理的LED布局方式.此外,给出了在满足照明条件下使总功率最小的LED选择标准.最后,通过帧频实验验证了系统设计的有效性.
英文摘要：
A vision system is designed for Lapa- ro Endoscopic Single -site Surgery（LESS） applica- tion： This system can provide illumination and field view for LESS. A CMOS sensor with analog output capability and a wireless video transmission chip is selected and a radio frequency power amplifier is designed to realize wireless and real - time video transmission. The resolution of the video is 0.3 million pixels. The difference in illumination uni- formity and minimal illumination between two dif- ferent layouts is compared and a reasonable layout for illumination is selected. Besides, a criterion to choose LED with minimal power consumption while satisfying illumination condition is given. At last, a frame rate experiment is carried out to verify the effectiveness of this system.
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